Office Manager Epicosity Sioux Falls, SD Job Details Full-time 18 hours ago Qualifications Office supply management Associate's degree in accounting Office activity coordination Maintaining an organized workspace Business travel arrangements Accounts receivable management Operations coordination Employee engagement program (employee development activity) Greeting customers Employee engagement strategy Associate's degree in Business Administration Vendor coordination Executive administrative support Mail distribution Mid-level Order shipping Financial issue resolution Vendor statement reconciliation Invoice payment processing Math Accounting data entry Financial record maintenance Mail management Vendor relationship management Office supply ordering Organizational skills Room tidying Business Administration Mail processing Corporate event planning

Full Job Description We're Hiring:

Office Manager | Epicosity | Sioux Falls, SD At Epicosity, we're a full-service advertising agency that guides our clients and staff on a journey to awaken their inner champion. Our work spans branding, digital, web, video, and media — and it's earned recognition locally, regionally, and nationally. We've also been recognized as one of the Midwest's best places to work by Prairie Business Magazine. That culture doesn't happen by accident, and the right Office Manager plays a big part in keeping it thriving. We're looking for an organized, detail-obsessed, people-first Office Manager who takes pride in keeping things running smoothly — and who genuinely loves being the person everyone can count on.

What You'll Do:

Client & Guest Experience Be the first face and voice of Epicosity — greeting guests and callers with warmth, professionalism, and energy Never miss an opportunity to excite and delight clients Finance & Billing Manage accounts payable end-to-end: reviewing invoices, maintaining documentation, reconciling vendor statements, and distributing checks Process monthly client invoices and manage timely collection of outstanding receivables Handle 1099/W-9 maintenance, vendor inquiries, and billing issue resolution Support the CEO and VP of Finance with accurate, timely financial tasks Office Operations Oversee office supply inventory and manage relationships with environmentally responsible, cost-effective vendors Keep the office organized, tidy, and running like clockwork Coordinate with vendors for cleaning, technology, trash, and other facility needs Sort and distribute mail; prepare US, UPS, and FedEx shipments as needed Manage employee travel arrangements and coordinate tradeshow logistics Maintain organized, clearly labeled filing systems in accordance with agency processes Culture & Events Plan and coordinate office culture events that bring the team together and reinforce Epicosity's intentionally positive workplace Champion the employee experience by organizing celebrations, team activities, and internal initiatives that make Epicosity a great place to work

What We're Looking For:

Associate's degree or two-year equivalent in business administration, accounting, or a related field Strong data entry and general math skills Exceptional organizational skills and attention to detail